What do you mean by deterministic?? That you don't know what the gearing is? If there's one thing that gearing ISN'T, it's non-deterministic. Do you mean that there's chain rub?
When I change the right gear to 6, sometimes it changes to sixth gear and some times it does not. I it is kind of unpredictable. In some cases it even take 5-10 secs to actually shift. By deterministic I mean that if I turn the shifter to #6, it will always change immediately to the 6th gear.
Kam